//////////////////////////////////////////////////////////////////////
//
//	spellingmain.cpp
//
//	Jeff Ondich 11/1/00
//	Last modified 11/1/00
//
//	A simple spell checker.
//
//	This program asks the user for the name of a file containing
//	a spelling list, then asks for the name of a text file, and
//	then prints out a list of the words that are contained in
//	the text file but not the spelling list file.
//
//////////////////////////////////////////////////////////////////////


#include	<fstream>
#include	<string>
#include	"spellinglist.h"

void CleanWord( string& theWord );

int main()
{
	// Get the names of the files.

	string		spellingListFileName;
	string		textFileName;

	cout << "Spelling list file: ";
	cin >> spellingListFileName;

	cout << "Text file: ";
	cin >> textFileName;


	// Declare and initialize the spelling list.

	SpellingList	spellingList( spellingListFileName );


	// Open the text file.

	ifstream		textFile( textFileName.c_str() );

	if( ! textFile.is_open() )
	{
		cout << "The file \"" << textFileName << " can't be opened." << endl;
		cout << "Perhaps it does not exist." << endl;
		exit( 1 );
	}


	// Process the words.

	string		word;

	cout << endl << endl << "Misspelled words" << endl;
	cout << "=================" << endl << endl;

	while( textFile >> word )
	{
		CleanWord( word );

		if( ! spellingList.IsIn( word ) )
			cout << word << endl;
	}


	// Clean up after yourself.

	textFile.close();

	return( 0 );
}


//////////////////////////////////////////////////////////////////
//
//	CleanWord removes all non-alphabetic characters
//	from the given string (except for hyphens and
//	apostrophes), and reduces all upper case letters
//	to lower case.  Thus, once CleanWord is done, theWord
//	consists entirely of lower case letters, hyphens,
//	and apostrophes.
//
//////////////////////////////////////////////////////////////////

void CleanWord( string& theWord )
{
	string	s = "";
	int		originalLength = theWord.length();
	
	for( int i=0; i < originalLength; i++ )
	{
		char	c = theWord[i];
		if( isalpha(c)  ||  c == '\''  ||  c == '-' )
			s += tolower(c);
	}

	theWord = s;
}